package com.xiaotu.command;

/**
 * @author 张晓
 * @create 2020-06-24 16:33
 */
public class TVReceiver {
    public void on(){
        System.out.println(" 电视机打开了 ");
    }
    public void off(){
        System.out.println(" 电视机关闭了 ");
    }
}
